Type-writing machine.



' PATENTED 11111.11, 1908. w. P. KIDDBR @L c. W. sPoNsBL.

TYPE WRITING MACHINE.

APPLICATION FILED MAY 12, 1906.

w/rNEssEs.'

PATENTED EEE.11, 1908. w. 1 ..K1nnEE a; c. w. SPONSEE.y

TYPE WRITING MACHINE. nAPPLICATION FILED H1112, 1906 4 SHEETS-SHEET 2.

- W/TESSES:

No'. 879,107. PATBNTED FEB. 1l, 1908. W. P. KIDDER 6: C. W. SPONSEL.

TYPE lWRITING MACHINE.

APPLICATION IILED IA'Y 12. 10W.

a. suus-sum 3.1

PATENTED FEB. l1, 1908, W. P RIDDER 6r C W SPONSEL TYPE WRITING MACHINE.l Arrnxonxon nun un 12, nos

4 annu-snm 4.

-w -mE UMTED srnfrns Parana? formen.

WELLINGTON PARKER KIDDER, OF BOSTON, MASSACHUSETTS, AND CHARLES W.SPONSEL,

" OF lARTFORD, CONNECTICUT, ASSIGNORS TO PARKER'MACHINE COMPANY, OFBUFFALO,

NEW YORK, AZCORPORATION OF NEW YORK.

'TYPE-WRITING MACHINE.

'fue avaro?.

' Specification of Letters Patent.

Patented Feb. i1, 190s.

Application filed 'May 12| 1906. Serial No. 316.4711

`of Massachusetts, andllartford, county of Hartford, and State ofConnecticut, respec- Vtively, have invented certain new and usefulimprovements-in .Type-Whiting Machines, of whichthe following. is afull, clear, andv exact description, such las Will enable others skilledvthe-art to which it appertains to make and metile-same.

"Om" invention frelates to typcwriting maffhinesf and-hasforits mainobjectl to provide means-for Irendering the platen-immovable `from-the;printinglplane under pressure of the .fprinting instrumentaliti-es.

IAnother object yis to 'provide means for holding thezplatenin -a fixedposition during printing`,yet such` that the platen may be`accurately-adjusted to :or from the printing planefand vheld immovablyin. any `adjusted position. y

portingmeans ofexceedingly lightand simple construction, through theemployment of which theplaten-supporting framework of Ilexisting'machines maybesubstantially eliminated. y

'.'Othferobjects will bein part obviousand in rpart pointed outyhereinafter. 4 The invention accordingly consists. in the features ofconstruction, `combinations of elementsrandz-:arr'angement of partshereinafter 3-5 @which -be indicated in the following set-forthzand thescopeof'the application of -fclai-rns. l -f :I n. the accompanyingdra-Wings, wherein is illustrate'dftwo of the various possibleembodiments of our invention, Figure l is a transverse sectional viewthereof showing certain of the parts in elevation. Fig. 2 is alongitudinal sectional view taken on line a-a of Fig.l 1. Fig. 3 isaview in elevation, showing thel means employed to indicate the positionof the platen With respect to the print- Fig. Llis a top plan view of apor- 'tion of the machine, sho-Wing certain features of our invention.Fig. 5 is a longitudinal sectional view taken through a typeWriti-ngmachine showing a different embodiment of our invention.

' Similarfl'eference characters refer .adapted p type-Writers, whereinthe printing charac- A further obj-ect is-tolprovide:platen-supto simiylar parts throughout the-several views of the drawings.

.ln order that the more important objects' and advantages of ourinvention may be understood, it may -be noted that .the writing machineto which our .invention is especially comprises a type known 4as silentters press against the impression surface in contradistinction to theusual types which effect printing by impact or concussion of theprinting characters. lt is desirable-in this` type of machine that asubstantially rigid impression surface be provided, as any movement ofthe platen under pressure of the printiugdevice seriously affects thcquality ofthe Work, and especially is this true Where considerablepressureA is exerted to produce a large number of copies, as inmanifolding. lt`is,moreover, desirable that the platen be .capable ofadjustment toward or from the normal printing plane, which is the commonplane occupied by the front faces of the printing characters in theireXtreme projected position.

By our invention., which We shall presently describe, We preferablyattain the above, `among other ends, by anchoring a tie-rod in the frontrigid framework of the machine and extending the same-transverselythereof to thefrear ofthe platen behind the printing point thereof, toprovide a-rigid abutment therefor, leaving the rear portion of themachine substantially free fromv` supporting framework. Fife alsoprovide means operatable from convenient location for shortening orlengthening theeifective length of this tie-rod, enabling the operatorat Will to cause the platen. to advance or recede from the normalprinting plane, the amount of move.

ment thereof in either direction being indicated by suitable devicepreferably visible at all times to the operator.

The above and other advantages arev secured in constructions of thenature of that hereinafter described..

vReferring 110W` tothe drawings, and particularly to the embodimentshown in. Figs. 1 to 4l inclusive, l indicates the framework of themachine, carrying a bed 2 suitably supported upon the side Wallsthereof, across which type-bars 3, but one of Which 1s shown,are:projected, said type-barsrin the present instance, being shownprovided with a pluralnecte vices, not, shown.

' handle or knob 22.

ity of printing characters. Type-barv 3v is con- 5 'and rod 6 tokey-lever 7, which rests upon universal bar 8. .The above mechanism,however, forms no essential part of our presv ent invention, but servesas an aid, merely,. 1n rendering the same'clearer of understandlng. l

At the rear of the machine, su ported by standards 9, is a stationaryrai 10, upon which rides a tubular slotted yoke 11, comprising a portionof the carriage, said yoke eing carrled upon grooved wheels or casters12, which extend through openings 13-in the yoke and run u on rail 10.Yoke 11 is afforded feed for etter-spacing through rack.

14 and pinion 15, by suitable escapementdel Rigidly mounted u on yoke 11at either end thereof, and exten 4ing upwardly therefrom, are channeledguides 16, which operate through means hereinafter.

described to guide the platen when the same is shifted for upper orlower case printing, said platen frame 4being shifted to differentprinting positions by means of shift mechanisnrl operating throughchannel-bar 18, which extends longitudinal-ly of the carriage.

Near the upper extremity of the side members 19 and 20 of theplaten-frame 1.7 is journaled a paper roll 21', having an operating Sidemembers 19 and 20 also-form a support for a longitudinally-ex tendingI-beam rail 23, which has, at either end thereof, paralelly-arrangedside arms 24 and 25 extending'forwardly therefrom and supporting attheir forward ends, in the present instance .by means ofv screws 26,the.

platen 27. Platen 27 is comprised by a thin strip of metal having aplane impression face 28,;and has its rear face 29 curved to restagainst the curved periphery of aper roll 21 so as 'to fit the sameclosely. I- earn rail 23.

is substantially co-extensive with the length of-platen'27 ,and slides,when feedingof the carriage 1sA afforded for letter-spacing, in a block30, provided with lips 3'1'and 32, which take 'about the edge of saidI-beam rail'23 and maintain the block-lin closeengagement wi-th'I-beamrail 23 but allow said I-beam rail tofreely slide therebetween when 'thecarriage is fed for letter-sp aci'n'g-A f lnl order that the platen maybe yrendered unyielding .against pressure of the lprinting characters,we have provided .a tie-rod or bar 33 extending transversely of themachinev 'in the central portion thereof', which issu-p"- portedintermediate its length in a guiding trough 34 defending from.bed 2 'andSuse' pended there rom by suitable -means as, inthepresent instance, byscrews .`35.'. Tierod 33, which may belthickened as at 36, if desired,to' give added'strength, has at its .rear 'portion-a verticalV extensionor abutment 37 provided with'ways 33 to receive.

by means of link'4, toggle mechanism.

.surface of -aper roll 21.

wise movement by means of collars 45 and 46 inned thereto at 47 and 48res Aectively. Col ar'45 is provided with a han le 49 by means ofWhichvadjusting screw .42 may -be turned, and a pointer 50re istermgupon -a' vconcentrically arranged sca e 51.- Depend.

ing from. bed 2 is a rigid curved Amember or lug 52 from which extend.radial braces 53 joining the bed with the frontwall 44 of the By means fofv framework of the machine.

these braces, the wall of the framework isl held rigid againstallstressesexerted by. the .tie-rod. Resting against member 52 and enteringopening 54 in the end of. tie-rod arestrong coil springs 55, one ofwhich is ar'- ranged at either side of adjusting screw 42. These sringsexer'ting their-influence against the en(f)of tie-rod 33,3 take ution in the tie-.rod and at,al times-,compel abutment -37 to assume therearmost posiytion ermitted' by th'eadjustment of screwv 42. t should,however, be' noted .that as screw 42l is 'fixed 'by washers 45 and, 46',

against endwise movement andscr'e'w 42 being threaded into the endopemngof tie-rod 33, verylittle lost motion,`1f any, can ever,l

orted' u on the inner beveled edgejof ,l beam ra' 23 and extends 'aboutthe under From t e foregoing description of1 the 'above described.embodiment ofour invention, it will be observed thatplaten A27'is car-7ried at either endby-rigid memberextending forwardly from opposite endsoflfbeamfrai exist in the tie-ro'd.- 'A' paper table '56 is su 23,.andfor substantiallyits entireI length rests 'in' contact Withpaperroll21', they journals. of which" extend through sidezmembers 19 and20'ofplaten frame 17, and, as,fIfbeam' rail 23 rests against block 20interposedbetween .the same 'and l,abutment 37 oftie-rod 33,.any(pressureupon the 'platen' will p ro-f duce a l vtie-rodbeing rigidlyanchored against --end-- Wise movement byreason of'itsattachment irectpull :upon the tie-rod. .-lhis to the front wall ofthe framework, theplaten ispreventedfrom yieldin. under pressure of 12o the printing'devices.v ockfi30', :.slidin in` ways.A 38, permits the vplat-'en tobefsh' ted from normal printing positionto otherf'printing osition's,vand I -heam 23,1' in slides in vb ook 30'when 'letterfspacingusafforded.

' When' it is.l desired 'to .adjust the platen ,with lrespect to .thenormal lpr'intiigfp'lane, such 'adjustment may-beeffected by simplyturn- ,ing adjusting lsc rew 42 of tie-rod 33 by means of operating'handle 4Q,4 the amonntof the being accurately measured end indicatedI 4against yielding due to endwise' or tensile Award portion with achanneled way 6 4, the walls of which take about afiange of a.orchanneled bracket 67 depending from the .type bed. Legs 680i yoke 66extend. foran integral internallythreaded member 69 receding oradvancing 'movement 'thereof i upon scale 5l. Itl will be noted thattie-rod 33 takes the place of the supporting framework usually employedin type-writing ma chines,leaving the rear portion of .the ma chineentirely free for .the attachment of tabulating or otherauxiliarydevices, which, if desired, may be su )ported from the tierod.The tie-rod, while substantially rigid stress, is nevertheless 'ofexceedingly light construction, which fact materially lessens the weightof the machine.

f ln-Fig; 5 we have shown an adaptation of our invention differingslightly from the one above described, in that the platen frame isrigidly yet slidably anchored in a yoke adjustably connected with therear ehd ofthe tie-rod. In this embodimenn. as in the embodiment abovedescribed, the platerr frame l7'is mounted for shifting in verticallyldisposed channeled guides 16 and has, at. either end, upwardlyextending varms. .57, which form journals forthe shaftof the paper roll21. Forwardly from arms 57 extendarms 58, between which is extended theplaten 27,

said platen being constructed similarly to that vin the embodimentabove-descijibed and lying against the peripheryfof the paper roll in asimilar manner. j Upon an u right 59 erected upon channel bar 18 oftlliel platen frame, disposed between the side Walls thereof and rigidlyconnected therewith,- is a railor plate 6() provided 4at its forwardportion with a downwardly turned flange 61.

This flange extends the entire len th otthe rail or plate 60, andisslidably ttedin a channeled block 62, which has an upwardly turned lip63 for engaging the rearsurface of flange 6l. Block 62 is providedin itsforyoke 66 islidably supported butrfitting closely between. the walls ofa guidingtrough l.Wardly and approach each other to -unite in whichengages the threaded end of a tie-rod` 70 suitably supported for slidingin hangers '71 depending from type bed. This tie-rod extends through theiront wall of the ma chine and has rigidly secured 'theretoa knob oroperating handle 7 2,.'preterably milled as shown,` said milled knobcarrying a pointer 73' which registers on a suitable scale provided onthe front wall oi" the machine asin the embodiment'rst above described.In this embodiment of our invention we have shown a tiltable paper table74 which is j ournaled at 75 upon lugs 76 extending from plate 60, saidtable being provided at its for-v ward end-'with a presser roll '7 7held 'yieldably against the paper roll by suitable springsgnot 1 shownherein as 'the -same comprisesno Yes-v sential part of our presentinvention. In the operation of this embodiment of our invention it willbe understood that when feed of the carriage is afforded by theescapernent mechanism, tlange 6]. of plate 60 will slide in block 62 andthat block 62 will ride on Hangeprinting plane being indicated u on thescale provided upon the front wal of the irame of the machine as in theembodiment iirst above described. The pieten, through arms 57, plate 60,and block 62, which is cnnected to the yoke of the tie-rod, is heldrigidly against rearward movement lunder pressure of the printinginstrumentalities when projected thereagainst.

Itwill accordingly beseen that we have 'provided constructions welladapted to attain the ends and objects of our invention, some of whichhave been already pointed out which will` operate with a high degree ofefficiency. An important advant Ue secured bythe structures as thusdescribed residesin ther fact that through the adjustable character ofthe platen with respect to the printing oint the printing characters may.Je applic ltothe impression surface with any desired degree rof.pressure, thus securing even impressionsfthrough the employment ofinking ribbons in various stages ai' wear, or of ribbons impregnatedwith different uantities of ink. The adjustment of the p aten can beeasily' and quickly accomplished from aV location near the key-boardconvenient to the operator, and the cooperating scale and pointermechanism at all times indicates its exact position. .l't shouldfurtherbe noted that since thevtie-rod is anchored in thefront wall ofthe fr aining'o'f the machine near the pivotal su ports of the typebarproj ecting means, an whether extended rearwardly ot the platen orfurnishing an anchor for the platen beneath the same, it forms a 'rigidabutment for the said platen, and not only resists pressure of thetype-bars .exerted thereagairist, but, as well, resists the reaction. ofsaid typebars communicated to the front wall of the machine throughtheir projecting devices. It should also be noted that the tie-rodfurnishesa tension member which'connectsthe framing of the machine -andthe support of. the type-bar actuating .mechanism with the platen.

It will, of course', be apparent that while both embodiments of ourinvention, as-.herein shown and described, are especially adaptedfor thetype ofmachine with which the are.- shownv associated, thev-are also Weli sense. We desire` it also` to be understood that the language 'used inthe following claims adapted for use other forms of type-`,writingmachines. 'e f As many changes could be made in' the above"constructions and. many apparently `widely differentembodiments of ourinvention couldbe-made without departing from the scope thereof, weintend that'all Amatter contained Vin the above description or shown .inthe. accom anying drawings shall be interpreted asi ustrative and not ina limiting is vintended .to cover` all ofthe generic and scribedlandall' statements 'of the scope of the mventionwhich, as a matter o'flanguage, m1 htbe saidl to fall therebetween. Y

aving described our invention, what we 2. The vcombination-in atypewriting ma chine, of a platen,l tied a ainst pressure of the typebars by. means anc ored in the framing of the machine andjeirtendin ytransversely thereof intermediate itsends, t e'press'ure resistingportion thereof being in line with the printing point.'

3.' rlhe combination withfthe platen ofl a typewriting' machine, ofymeans 'which eX- tends transversely of the machine in the cen` tralportion 'thereofy for tying the platen to the front of the frameworkofthe machine so that movement thereof is prevented whilelthe printingcharactersarebeing impressed against the platen. 4.' The 4combinationwith the platen' of a typewriting machine, of means extending frombehind the rinting point on the platen and then throng the centralportion of the machine-to thelfront portion thereof, said means beinganchored in the framing of the machine whereby' thrusts ofthetype-barsare eecti'vely resisted.' I 5.V In a typewriting machine, the combinavtion of a platen, and pressurefresisting vmeans located directly behindthe printing point thereof, said means extending transverselyT vthroughthe centralportion of the machine and being anchored to the frontportion of the frame of the machine whereby the platen l"is renderedimmovable in the direction ofthe thrusts of the printing devices.

6. AIn a typewriting machine, the combin'ation of a platen, and a rodanchored at oneend in the framework of the machine, extendingtransversely thereof, and having its opposite end connected with theplaten behind the printing point so as to furnish a backing for Vtheplaten which is stationary during prmtmg.

specific' features of the invention herein declaim as new and desire tosecure by Letters rearvf/iardlytol a point behind fthe 'to the centralportion of the front wall of the The combination, injatypewritingmachme, of a platen, and a device comprising apair ofconnected, relatively adjustable members, one end of which furnishes abac-king for the platen andliaving the opposite end there- 7.0

of anchored inthe frame ofthemachine, said device ,operating tomaintain; the platen against movement Afrom vthe printing planeunderpress'ure of the printing mstrumenta tieS. 75 8. `In 'a typewritingmachine, the combines tion .with the platem'a device comprising apair'of relatively adjustable-members one ',end of which 'furnishes abacking fory the platen andihaving the o 'posite end 'thereof' 80anchored inthe frame of) the machine,`said device operating to maintainthe platen against movement duringv printin .and means for adjustingsaidmembers re atively to' each other. a I 9. The lcombination 'with theplaten of a typewriting machine,l of: a rod anchored in the front of theframing of the machine and extending rearwardly intermediate the ends ofthe machine to a point behind the printing point of the platen tofurnish 'a rigid backing for the laten while printing is being effected.--10. n`a typewriting machine, in combinaytion'with the printing devicesand the platen,

-of means for furnishing .a'rigid backing for 95 .the, platen through aconnection with a rigid part of the lframework in the front portion of'the machineintermedi'ate the endsl thereof.y

' 11. In atypewriting machine, in'combina-A tion, a platen, andadjustable ,means extending rearwardly from-.a rigidipart of thelmachine in the front portion intermediate the ends thereof thateffectively prevents yielding pf thelplaten under the-pressure of thetype SIS.

12. In a typewriting machine, in combination, a laten, and means.extending rearwardly rom a rigidl part of the front of the framing ofthe'machine 4and then' extending upwardly to a point directly behind theprinting point of the platen to furnish a rigid backing therefor.

13.l In a typewriting machine, in combination, a platen, and means fortying the platen framing of the machine.

14. In a typewriting machine, in combination, a platen, means for tyingthe platen to the front wall-of theframing of the machine' intermediatethe ends thereof, and means for changing the length of said tying means.

15. In a typewriting machine, in combinaf tion, a platen, and extensiblemeans extendl ing rearwardly from the front portion of the frame of themachine intermediate its ends to a point behind the platenlto form anim` movable support therefor.

16. In a typewriting machine, in combination, a platen, means fonajusting the platen in the direction of the stroke of the type bars,

said adjusting means being operable from a position in the front of themachine near the keyboard, and means cooperating with said adjustingmeans to indicate theamount of adjustment given the platen.

17. In a typewriting machine, in combination, a platen, and meanslocated at the front portion of the machine near the keyboard foradjusting the platen toward or from the printing plane, said adjustingmeans operating to maintain the platen against yielding 1n any adjustedposition.

18.' In a typewriting machine, in combination, a platen, adjustingmeansfor the same anchored in the front wall of the machine, and means foroperating said adjusting means whereby the platen may be moved toward orom the printing plane.

19. In a typewriting machine, in combination, a platen, adjusting meanstherefor anchoed in the front wall of the machine, and means coperatingwith said adjusting means to indicate the amount of adjustment given theplaten thereby.

20. In a typewriting machine, in combination, a platen, a member forminga rigid abutment therefor extending forwardly thereof, and ascrew-threaded member anchored in the front wall of the machine andcoperating with said first-mentioned member to nove said platen towardor from the printing p ane. Y

21. In a typewriting machine, in combination, a platen, an unyieldingabutment for the platen extending forwardly thereof, a member having athreaded connection with said abutment Aanchored in the front wall ofthe machine, means for rotating said member to cause said abutment tomove the platen toward or from the printing plane, and means forindicating the amount of rotation given said rotating means.

.22.A In a ty yewriting machine, the combination with the carriage, of aplaten frame forming a part thereof, and movably mounted therein, aplaten rigidly supported in the platenframe, and rigid backing means forthe platen frame extending forwardly thereof attached to the front Wallof the framework of the machine. v

23. In a typewriting machine, in combination, a platen, means forsupporting the platen at either end thereof, and an abutment adapted toprevent yielding of the platen supporting means pwhen the platen isengaged by the printing instrumentalities, said abutment being held in arigid osition by means extending transversely of t emachine,

intermediate the ends thereof, and attached to a fixed part of themachine.

24. In a typwriting machine, in combination, a platen, means forsupporting the platen at either end thereof, an abutment adapted toprevent yielding of the platenmeans anchored inthe front wall of theframe of the machine intermediate the ends thereof and connected withsaid abutment adapted to hold the same againstmovement.

25. In a typewriting machine, in combination, a platen, a support forthe platen, and a tie rod for the platen support, one end of whichfurnishes a rigid abutment for the plllater support behind the printingpoint of t e p anchored in the front Wall of the typewriter' frameintermediate the ends thereof.

2 6. In a typewriting machine, in combination, a platen, means forsupporting the platen at either .end thereof, an abutment located behindthe printing point of the platen adapted to prevent yielding of theplatensupporting means when the platen is engaged by the printinginstrumentalities, means connected with a rigid portion of thetypewriting machine for holding said abutment in a stationary position,and means interposed between the platen-supporting means and saidabutment adapted to permit the platen to be shifted to other printingpositions or to be fed for letter spacing.

27. In a typewriting machine, in combination, a platen, means forsupporting-the platen, means located directly behind the printing pointof the platen adapted to furnish a rigid abutment for theplaten-support'- ing means, and means Yinterposed between saidplaten-supporting means and said abutment which permits the platen to beshifted for different case printing or to partake of letter-spacingmovement.

28. vIn a typewriting machine, in combination, a platen, a supportforthe platen, and a tie rod for the platen su port, one end of Whichfurnishes a rigid a utment lfor the platen support behind the printingpoint, the opposite end thereof being anchored in the front WallI of themachine, and means inter posed between the platen support and saidast-'mentioned means adapted to allow shifting of the platen to anotherprinting position or to partake of a letter-spacing` movement.

29. In a typewriting machine, in combination, a laten, a platen support,a rigid abutment or the platen support, and means interposed' saidabutment adapted to slide upon said abutment When the platen is shiftedto another printing position, said platen su port being ada ted to slidein said last-mentioned means when letter-spacing movement is afforded.

30. In a typewriting machine, in combination, a platen, a laten support,a rigid abutment for the p aten support, and a block slidably mountedupon said abutment andV aten, the opposite end thereof being betweensaid platen support and'v interposed between thesameand said platensupport in which block said platen support is slidably mounted.

31. In a typewriting machine, in combination, a platen, a platensupport, a rigid abutment for the platen support, and a loosely-mountedblock carried by said platen support sliding in ways in said abutmentwhen the platen is shifted to other printing positions.

32. In a typewriting machine, in combination, a platen, a platensupport, a rigid abutment for the platen support, and a block in whichthe platen support slides when letterspacing movement is afforded, saidblock s iding relatively to said abutment when the platen is shifted toanother printing position.

33. In a typewriting machine, in combination, a platen, a platensupport, an abutment forming a rigid backing for the platen support, anda block interposed between said platen support and said .abutmentprovided with means loosely engaging said platen support to permit a'letter-spacing movement thereof and being further provided withmeanssliding in ways in said abutment when the platen is shifted to otherprinting positions.

34. In a typewriting machine, in combination, a platen frame comprisedby a pair of side members joined by a rigid, longitudi' nally-extendingmember, a platen supported by extensions from the ends ofsaidlast-mentioned member, a paper roll journaled between said sidemembers of the platen frame, the periphery thereof forming'a rigidbacking for said platen intermediate the ends thereof, a block in whichsaid longitudinally-extending member slides when the platen frame is fedfor letter-spacing, and a rigid abutment in which said block slides whenthe platen frame is shifted to other printing positions.

35. In a typewriting machine, in combination, a platen frame comprisedby a pair of side members joined by a rigid cross member which extendslongitudinally of the machine, a platen supported by means extendingforwardlyv from the ends of said cross member, a paper roll journaled inthe side members of said laten frame at or near the intersection of saidside members of the platen frame with said platen-supporting means, theperiphery of said paper roll conforming to the .re-ar surface of saidlaten andforming a backing therefor, a bl) which said cross memberslides when the platen frame is fed for letter-spacing, and a rigidabutment provided with ways in which said block slides when the platenframe is shifted to other printing positions,

36. In a typewriting machine, in combina- 7 tion, a platen framecomprisedby a pair of side members joined by a rigid cross member whichextends longitudinally ofthe machine, forward extensions from saidcrossmember,

ock provided with a 'way in,

a'platen rigidly connected to said forward ex'- tensions, a paper rolljournaled at substan-` tially the intersection of theside members ofsaid platen frame and said forward extensions, a block provided with away in which said cross member slides when the platen frame is fed forletter-spacing, an abutment provided with ways in which saidv blockslides when the carriage is shifted to a different printing posit-ion,and means connecting said abutment with the front'wall of the machine.

37. The combination in a typewriting .machine, of means foreffectivelyresisting pressure of the printing instrumentalitiescomprising a platen,

member upon the forward. end extensions of .so a paper roll againstwhich'A the platen rests intermediate its ends, a rigid which arecarried said platen and said paper s roll, and an abutment, behind theprintingp'oint of the platen.

38. The combination in a typewriting machine, of means for effectivelyresisting the pressure of the type bars comprising a'ineml berv anchoredin the front wall of the machine and extending rearwardly thereof toform an abutment, a block slidably mounted upon said abutment, a membersliding in said block, a paper roll carried-by forward extensions ofsaid member, a platen also carried by said, forward extensions andresting againstv said paper roll, said platen, paper roll and abutmentbeing arranged in line with the direction of thrust of the type-'barsand ina plane parallel to the rearwardly extending member which formsthe abutment.

39. In a typewriting machine; the 'combination with the platen, of a'member extending rearwardly from the front wall of the machine to forman abutmentfor said platen,

and su porting means for said member intermediate the ends thereof. V

4Q. The combination with the. platenof a* typewriting machine, of anabutment, a member extending from said abutment through the front wallof the machine, means for holding said member-against endwise movement,and guiding members for. said abutment intermediate the ends thereof.

41. The combination with the platen'and' type bars,.of a bed for'supportingsaid type bars, a tie rod anchored-in the front wall of themachine and extending rearwardly there-v from and thence upwardly toform an abut-1 ment for the platen support, and means depending fromsaid bed through'which saidv tie rodextends.

42.'. In a typewritingmachinefin combination, a platen, a shiftableframe to which saidplaten is'rigidly secured, a rigid abutment for theplaten frame adapted to maintain the same against yielding underpressure nov of the printing instrumentalitiesagainst ,the

platen, and means for connecting said 4abutment to a rigid partofthe-framing ofthe abutment being dropped arene? front Wall of themachine intermediate the ends thereof. Y l

43. In a typewriting machine, in combination, la platen, a verticallyshiftable frame to which the platen is rigidly secured, a verticalabutment for the platen frame, a portion of said abutment extendingforwardly beneath the platen to be. anchored in t-he front por tion ofthe machine.

44. In a typenf'riting machine, in combination, a platen, a verticallyshiftable frame to Which said for the platen frame against which saidplaten frame presses when the printing instrumentalities are thrustagainst the impression surface of the platen, said abutment beingprovidedwith an extension projecting forwardly thereof beneathv theplaten, and means connecting the forward end of said extension with thefront Wall of the framing of the machine.

45. In a typewriting machine, in combination, a platen, a platen frameshiftable vertically to another )rinting' position, a rail forming abacking or the ends of the platen, an abutment forming a backing forsaid rail, and means connecting said abutment with the front Wall of themachine, whereby said abutment is held against yielding under pressureof the printing instrumentalities against the platen.

. 46. In a typewriting machine, in combination, a platen frame, a platencarried thereby and shiftable with said platen frame. to other printingpositions, a paper roll against Which the platen rests journaled in said`frame, a rail the ends of which form a backing for said paper roll andthe platen, an abutment form- `ing a backing for said rail, saidabutment belng provided with a forward extension dropping beneath theplaten and extending forwardly thereof, and a member anchored in theframing of the machine and threaded to the end of said forwardextension.

47. In a typevvriting machine, in combination, 'a platen framecomprising upright guiding members to permit of shifting said frame, arail supported at either end by said guiding'members, members extendingforwardly from the opposite ends of said rail, a platen supportedrigidly uponthe forward ends of said last-mentioned members, a paperroll journaled in said guiding members against which the platen rests,the journals of said paper roll extending through the members whichextend from either end of said rail, said platen, the journais of saidpaper roll and the rail being in a horizontal alinement, an abutmentbacking up said rail behind the printing point of said platen, saidbeneath said rail, platen and extending forpaper roll and and a memberfor tying said Wardly thereof,

- abutment to the front Wall of the machine.

48. The combination with the carriage, of

platen is secured, an abutment` 'the machine and extending rearwardlytherea vertical, shiftable laten frame mounted therein, a platenrigidriv secured between the ends of the members which extend forwardlyfrom opposite sides of said platen frame, a paper roll journaled in saidplaten frame against which the platen rests, said paper roll forming abacking for the platen intermediate its length, a rail extendinglongitudinally of said platen frame and secured at its opposite endsthereto, a block in which said rail is adapted to slide whenletter-spacing movement of the platen is ai'orded, an abutment providedwith a vert-ical extension having Ways in which said block is adapted toslide when the platen frame is shifted to another printing position,said abutment being provided with an extension dropped beneath theplaten and extending forwardly thereof, and a member threaded into theforward end of said extension and anchored in the front Wall of theframing of the machine. 49. In a typewriting machine, in combination, amember anchored in the front Wall of of and having a vertical extensionatI its rear end provided 'with guiding Ways, a block sliding in saidWays, a rail adapted to slide in said block, a platen, rigid membersextending forwardly from the ends of said rail to the forward ends ofwhich 'said platen is rigidly secured, and a'paper yroll journaledbetween said forwardly-extending members against which said platen restsintermediate its ends. v

50. In a typewriting machine, in combination, a platen, means anchoredin the framing of the machine and extending transi versely thereofadapted to prevent movement of the platen 4in the direction of pressureof 105 the printing devices, and means for taking up lost motion in saidfirst-mentioned means.`

51. The combination, in a typeuriting machine, of a platen tied againstpressure of the type bars by means anchored in the frame of the machine,and means for taking up lost motion in the tying means.

52. The combination, in a typewriting machine, of a platen, means-foranchoring the platen to the frame of the machine to render the sameimmovable against pressure of the printing instrumentalities, andresilient means for holding the platen in the rearmost positionpermitted by the anchoring means.

53. The combination, in a typewritmg machine, of a. platen, a tie rodtherefor, and means for taking up, lost motion in the tie rod.

54. In a typewriting machine, in. combi nation, a platen, a tie rod forthe platen, and means for maintaining the tie rod in an extendedcondition. f

55. In a typewriting machine, in combination, a platen, a rigid abutmentfor the platen. means for moving said abutment to cause vthe platen toadvance toward the printing plane or recede'therefrom, and means foryieldingly opposing the movement of the abutment when the same isadvanced .toward the 'printing plane. 56.In a typewriting machine, incombiy nation, a platen, a rigid abutment for t-he plane.

vis

platen,fmeans form ving said abutment to cause the platen t advancetoward the .printing plane or to recede therefrom, and a spring foryieldingly opposing the advancement ofsaidgabutment toward the printing57.v In a typewriting machine, in combination, a platen, a memberforming a rigid abutment therefor-extending forwardly thereof, and ascrew-threaded member anchored inv the front wall of the machine andcooperating with said first-mentioned member to move said platen towardor away from thel printing plane, and Vmeans interposed 'between saidmembers adapted -to take up lostmotion therebetween` 4 58. Inatypewriting machine, in combination, a platen, adjusting means for thesame anchored in vthe front wall of thc machine, means for changin'gvthelength of ,said adjusting means whereby the platen may be moved towardor from the printing plane, and means for maintaining the platen in therearrnost position permitted byv the adjustment of said 'adjustingmeans.

59. In a typewrit-ing machine,in combination, a platen, a suppdrt forthe platen, a

[tie rod for the platen support one end of which furnishes a ri idabutment for the platen support behin the printing point of the platen,the opposite end thereof'being anchored in the front wall of themachine,

and a sprin formaintaining said tie rod in] lan extende condition.

60. In a typewriting machine, in combination, a platen, a support forthe platen,

' an abutment for backing up the platen support, said abutment extendingforwardly of the platen, an adjusting screw threaded into thel forwardextension of said abutment and anchored in the front wall of the frameof the machine, and a spring resting against a shoulder upon the frameof the machine and Iexerting its'pressure against the forward exof themachine an exerting their pressure against the end o f the forwardextension of said abutment to cause the same to' assume the rearmostposition permitted by the adjustment of said adjusting screw.

62. Inla typewriting machine, the combinationwith the type bars, of aplaten shift- 'able for different case printing and whichfeedslongitudinally for letter spacing, and an abutment erected behindthe platen and in line with the printing point thereof for resisting anytendency of the platen to recede from the printing plane under pressuresexerted by the type bars.

63. In a typewriting machine, the combination with type bars adapted t0print by pressure inv contradistincti'on to -printing by impact orconcussion, of a laten movable transversely and longitudina ly of theprinting point, and an abutment located behind the printing point of thelaten andvin line therewith which effective y resists alrecession of thelatter from the common plane .as-

sumed by the faces of the type bars when they are projected to theprinting point.

64. In a typewriting machine, the combination with the type bars, of -aplaten shiftable for different'case printing and movable longitudinallyfor letterA spacing, an abutment erected behind the platen whicheffectively resists any tendency of the platento recede from theprinting plane under pressures exerted by the type bars when they areprojected to impression, and means combined with said abutment foradjusting the platen toward or from the printing plane.

65. In a ty, ewriting machine, the combination with platen, said typebars and said platen being mounted for relative transverse andlongitudinal movements to permit of different case printing and letterspacing, and an abutment erected in line with and behind the printingpoint of the platen which prevents a relative receding movement betweenthe type bars,

and the platen when the former are projected to impression.

66. In a'typewriting machine, the combination with direct thrust typebars, of a platen, said ty e bars and sai platen being mounted for reative transverse and longitudinal movements to' permit of different caseprinting and letter spacing, an abutment which prevents a relativereceding movement between the type bars and the plat-en with respect tothe common lane assumed by the faces of the type bars w en they areprojected to impression, and means for effecting a relative adjustmentbetween the platen and the type bars with respect to the printing plane.

67. In a typewriting machine, the combination with the type bars and theplaten, of a member which extends rearwardly and then upwardly behindthe platen to form a rigid irect thrust type bars, ofia' l backingtherefor, and means combined with said backing member for adjusting theplaten l with respect to the printing plane.

Ina typewritmg machine, the combination wlth the type bars and theplaten, of a member extending rearwardly and then up`' j means toward orfrom the common plane ,"device extending rearwardly t rough the. machineintermediate the ends thereof, and

."'having a portion thereof extending upwardly assumed by the faces ofthe types when pro- 'jected to impression, whereby the platen is movedin corresponding directions withrespect to said plane. l

69.. In a typewriting machine, the combination with the type bars andthe laten; of

means extending-upwardly behind t e platen.

to form a rigid backing therefor, whereby the pressures of the type barswhen they are projected against the platen are effectively rey sisted,and means combined with said backing means ada ted to move theplatentoward or from t ie printing plane.

70. In a typewriting machine, the combination with the type bars and theplaten, of a device secured to a rigid portion of the framing of themachine, which extends upwardly behind the laten to furnisha rigid abutment that will effectively prevent a recession ofthe platen when thetype bars are proj ect-- ed thereagainst, said device having meanswhereby it may be adjusted to cause the platen to move toward or fromthe common plane assumed by the faces of the type bars when they areprojected to impression.

` 71. In a typewriting machine, the combination with type bars and thelaten, of a behind the platen to form a rigid abutment therefor, saiddevice having means for adjusting said upwardly extending portionforwardly or rearwardly to move the platen in corresponding directionswith respect to the common plane assumed by the faces of the types whenthe type bars are projected to impression.

72. The combination in a typewriting machine, of a platen and a devicecomprising a pair of connected relatively adjustable members, saiddevice being anchored to a fixed ortion of the machine and having oneend tliereof arranged to. furnish a backing for the platen in line withthe printing point which effectively holds the same against.

the machine and extending rearwardly and then upwardly to a pointdlrectly behind the printing point of the platen.

74. In a typewriting machine, in combination, a platen, an abutmentextending upwardly behind the platen to furnish a rigid backingtherefor, means for tying the abut ment to a fixed portion of theframing of the machine, and means for changing the length of said tyingmeans.

75. In ay typewriting machine, the combination with the platen and aplurality of 'printing members adapted to print by pressure, of meansoperable near the front portion of the machine in proximity to thekeyboard for adjusting the platen toward and from the printing plane andfor maintaining the platen against yielding in any adjusted position.

7 6. In a typewriting machine, the combination with vthe platen and alurality of printing members adapted to print by pressure, of anabutment arranged behind the platen and adapted to furnish a backingtherefor, and means connected with said abutment and operable from aposition in proximity to the keyboard for moving said abutment toward orfrom the common plane assumed by the faces of the types when projectedto impression.'

77. In a'typewriting machine, the combination with the platen and aplurality of printing members adapted to prlnt by pressure incontradistinction to printing by impact or concussion, lof an abutmentarranged behind the platen which furnishes a backing therefor, adjustingmeans cooperating with said abutment for moving the platen toward orfrom the common plane assumed by the faces of the types when they areprojected to impression, and means cooperating with said adjusting meansto indicate the amount of adjustment given the platen.

7 S. In a typewriting machine, the combination with the platen and aplurality of type bars adapted to print by pressure, of an abutmentdisposed behind the platen and mounted to slide transversely of themachine, a paper roll arranged between said abutment and the platen,aspace being provided between said abutment and the paper roll throughwhich the paper may be inserted, and means cooperating with saidabutment to move the platen and the paper roll toward or from the commonplane assumed by the faces of the types when they are projected toimpression.

79. In a typewriting machine, the combination with the platen frame, ofa platen carried thereby, a platen roll journaled in said frame behindthe platen, an abut-ment arranged to slide transversely of the machineand extending upwardly behind the platen frame to furnish a backingtherefor, and

means combined with said abutment for adv justine; the same toward orfrom the plane assumed by the faces ofthe types when they areprojectedto impression, whereby the face of the platen with respect to said planemay be regulated.

80. In a typewriting machine, the combination'with the platen and aplurality of type bars adapted to print by pressure, of an abutmentlocated directly behind the printing 4point of the platen which isbodily movable toward or from the common -plane assumed by the faces ofthetype when projected to impression, and means for moving said abutmentand for holding the same in a predetermined position.

8].. In a typewriting machine, the combination with the platen and aplurality of type bars adapted to print by pressur of an abutment risingfrom beneath the p aten to'- a position directly behind the printingpoint thereof which furnishes a rigid backing for the same, and meansfor adjusting saida'butment to carry the platen toward or from theprinting plane` 82. In atypewriting machine,- the combination with aplaten and a pluralityv of type bars adapted to print by pressure, of anabutment disposed behind the platen, and a paper roll arranged betweensaid abutmentand the vplaten for receiving paper insertedbetween thesame and said abutment and for feeding the paper upwardly'acrossthefaceof the platen.`

83.` In a typewritihg machine, the combination with a plurality of typebars ada ted to print by pressure, of abcd upon W 'ch said type bars aremounted, and across which they are slid'wh'en projected to impression, aplaten, a paper roll arrangedbehind the platen, an abutment erectedbehind the paper roll for resisting any tendency of the vplaten' 'torecede from the printing plane underpressure of the type bars, and amember connectl ed with said abutment and extending forwardly throughthe lfront' wall of the. maf. chine, ad'a ted to adjustthe same, wherebythe face o the platen maybe moved toward v or from .the printing plane.

84. 'In atypewrrtlng machine, thecombi-.- nation with a plurality oftype bars adapted to print by pressure, of a bed upon which said typebars aremounted, and across which they are slid when projected toimpression, a

platen, a paper roll arranged behind the platen, an abutment erectedbehind the paper .ofja movable abutment disposedbe 'roll for' resistingany tendency of the platen to recede Jfrom the printing plane underpressure of the type bars', a member connected with said abutment andextending forwardly through the front wall of themachine, a dapt. ed toadjust the same, whereby the face of f the platen may be moved toward orfrom the printing plane, a dial arranged upon the front wa'll of themachinel near the keyboard, and

vmeans cooperating with said dial for indil eating the amount ofadjustment given the platen.' l

85. In a typewriting machine, the combination with the platen and aplurality of type b ars adapted to print by pressure, .of actuf atingmechanism for the type b ars, anda4 tension member .extended between thesu port of said actuatingmechnismjand te platen.'

86. In a typewriting machine, the combif nation with the platen and aplurality of type.

bars adapted'to print by pressure, 'of an abutment 'disposed behind theplaten and a ten-f" sion memberl extended between said abutLA ment and afixed portion .of the framing-'lof 87. In a typewriting machine, thecorr-rbi#Y themachine; y

nationwith the platen and a-pluralityiof'type bars adapted toeiiect'printing by'pessure,

"nd-the platen and an adjustablevtension meni'ber connecting saidabutmentwith aiixe or'-v tion of the franiingofthe machine 'an for'moving the same toward or from the printing plane and for holding it in'any adjusted ip'osi-` tion..

88. 'In a typewriting machine, the c'oinbi-l nation with the platen andprinting 'mecha n" ism ofv a tension` member, adjustable in thedirection of its length andfextending'betwee'n.

if Cerler!

